NERO Stream WRA is a compact outdoor amplifier that combines the power of Class D amplification with the convenience of wireless streaming. This rugged amplifier is Bluetooth and WiFi enabled and can be placed anywhere there is access to an AC power outlet. Simply pair your cell phone or tablet to the NERO Stream WRA, download the free OSD Audio Player App and listen to your favorite streaming service or enjoy a podcast while relaxing in the sun. Up to four speakers can be connected to the NERO Stream WRA to create separate audio zones. For instance, you can add one pair of speakers by the pool and the other pair near the patio. The Player App lets your control the source and volume right from your cellphone or tablet. The NERO Stream WRA also includes left and right Aux Inputs to connect other sources such as a DVD player so you can even set up an outdoor home theater system. To cover large outdoor spaces, add more NERO Stream WRAs to expand and control four, six, eight zones and more.